Network sharing has become an important means for operators to reduce operating costs

speed up business listing and enhance brand competitiveness in the 4G stage. In the 5G phase

it is necessary to further explore the 5G multi-operator sharing co-modeling model. Firstly

this paper introduces the opportunities and challenges faced by 5G network sharing. On the basis of in-depth study on the standardization progress of 5G sharing in 3 GPP

the technical scheme of end-to-end 5G network sharing is given. At the same time

some difficulties of 5G sharing are analyzed

and the feasible deployment suggestions are given. Finally

this paper calculates the cost of indoor 5G single construction and co-construction with sharing

and the results show that co-construction and sharing have slightly more benefits.